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    40．-Has Tom finished his job yet? -I have no idea of it; he it this morning. A．has been doing B．had been doing C．did D．was doing 【查看更多】

     

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    －Has Tom finished his job yet?

    －I have no idea of it; he _____ it this morning.

    A．has been doing　　　　　　　　　　　　　　 B．had been doing

    　 C．did　　 D．was doing

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    一Has Tom finished his job yet?

    －I have no idea of it；he       it this morning．

        A．did               B．was doing        C．has been doing   D．had been doing

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